| /* |
| * Copyright 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package androidx.ui.graphics.vector |
| |
| import androidx.compose.Composable |
| import androidx.compose.MutableState |
| import androidx.compose.state |
| import androidx.ui.core.DensityAmbient |
| import androidx.ui.core.asModifier |
| import androidx.ui.core.draw |
| import androidx.ui.core.test.AtLeastSize |
| import androidx.ui.framework.test.R |
| import androidx.ui.geometry.Rect |
| import androidx.ui.graphics.Color |
| import androidx.ui.graphics.Paint |
| import androidx.ui.res.loadVectorResource |
| import java.util.concurrent.CountDownLatch |
| |
| class VectorInvalidationTestCase(var latch: CountDownLatch) { |
| |
| // Lazily initialize state as it needs to be constructed in the composition |
| private var vectorState: MutableState<Int>? = null |
| |
| /** |
| * Queries the size of the underlying vector image to draw |
| * This assumes both width and height are the same |
| */ |
| var vectorSize: Int = 0 |
| |
| @Composable |
| fun createTestVector() { |
| val state = state { R.drawable.ic_triangle2 } |
| vectorState = state |
| |
| val vectorAsset = loadVectorResource(state.value) |
| with(DensityAmbient.current) { |
| vectorAsset.resource.resource?.let { |
| val width = it.defaultWidth |
| vectorSize = width.toIntPx().value |
| AtLeastSize( |
| size = width.toIntPx(), |
| modifier = WhiteBackground + VectorPainter(it).asModifier()) { |
| latch.countDown() |
| } |
| } |
| } |
| } |
| |
| val WhiteBackground = draw { canvas, size -> |
| canvas.drawRect( |
| Rect.fromLTWH( |
| 0.0f, |
| 0.0f, |
| size.width.value, |
| size.height.value |
| ), |
| Paint().apply { this.color = Color.White } |
| ) |
| } |
| |
| fun toggle() { |
| val state = vectorState |
| if (state != null) { |
| state.value = if (state.value == R.drawable.ic_triangle) { |
| R.drawable.ic_triangle2 |
| } else { |
| R.drawable.ic_triangle |
| } |
| } |
| } |
| } |